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30301323031 = 74328760433
BaseRepresentation
bin11100001110000110…
…010111111100010111
32220012202021200212101
4130032012113330113
5444024114314111
621530434302531
72121615665440
oct341606277427
986182250771
1030301323031
111193a341531
125a57a27a47
132b1b937155
1416764842c7
15bc52e9bc1
hex70e197f17

30301323031 has 4 divisors (see below), whose sum is σ = 34630083472. Its totient is φ = 25972562592.

The previous prime is 30301322983. The next prime is 30301323053. The reversal of 30301323031 is 13032310303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30301323031 - 219 = 30300798743 is a prime.

It is a super-2 number, since 2×303013230312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30301323331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2164380210 + ... + 2164380223.

It is an arithmetic number, because the mean of its divisors is an integer number (8657520868).

Almost surely, 230301323031 is an apocalyptic number.

30301323031 is a deficient number, since it is larger than the sum of its proper divisors (4328760441).

30301323031 is an equidigital number, since it uses as much as digits as its factorization.

30301323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328760440.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 30301323031 its reverse (13032310303), we get a palindrome (43333633334).

The spelling of 30301323031 in words is "thirty billion, three hundred one million, three hundred twenty-three thousand, thirty-one".

Divisors: 1 7 4328760433 30301323031